Apparatuses and Methods for Small Data Transmission in a Radio Resource Control (rrc) Inactive State

3. The method as claimed in claim 2, wherein the first threshold is configured in Reference Signal Information (RSI) received from the serving cell.

4. The method as claimed in claim 3, wherein the RSI is received in an RRC message or a broadcast message.

5. The method as claimed in claim 2, wherein the data is transmitted in an RRC message comprising a resume Identifier (ID), a resume Message Authentication Code-Integrity (MAC-I), and a resume cause.

6. The method as claimed in claim 5, wherein the RRC message is an RRCResumeRequest message.

16. The method as claimed in claim 15, wherein the reporting of the signal quality of the serving cell is performed in response to each uplink transmission, or in response to the signal quality of the serving cell being associated with a predetermined signal level, or in response to the monitored signal quality of the serving cell being changed.